At least 28 people have been killed in landslides and flash floods triggered by two days of heavy rain in northeastern India.

Indian authorities said on Tuesday that at least 14 deaths were reported in the northeastern state of Meghalaya while another 14 people lost their lives in neighboring Assam state, where several districts, including the capital Gauhati, were flooded.

According to district official Pritam Saikia, 90 villages have been inundated and over 150,000 people have been urged to leave their homes for higher ground in Assam’s worst-hit district of Goalpara.

Thousands of people who left were camped on a highway as local authorities made efforts to set up relief shelters for them.

Officials also said that in Gauhati army troops and federal workers were seeking to save those trapped and army helicopters were on standby.

Although the rain stopped for several hours on Tuesday, more rain is expected for the next 36 hours. Flooding is common in the area during the June-to-September monsoon season.

Heavy flooding claimed at least 11 lives in Gauhati in June.

Earlier in September, over 270 people died in Indian-administered Kashmir when monsoon floods inundated the Himalayan region which is claimed by both India and Pakistan in full. However, each only has control over a section of the territory.

An Iranian delegation has visited the flood-hit area to assess the situation and provide support to the people in the disaster zone.